US PATENT SUBCLASS 178 / 86
.~ Reciprocating contact

Current as of: June, 1999
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178 /   HD   TELEGRAPHY

79  DF  CODE TRANSMITTERS {5}
86.~ Reciprocating contact

DEFINITION

Classification: 178/86

(under subclass 79) Code-transmitters having a contact member arranged to move into and out of contact in straight lines.